Winter Solstice, also known as hibernal solstice, is the day with the shortest period of daylight in the year. In the northern hemisphere, this takes place around December 21 (the date varies depending on the year); in the southern hemisphere it is in June. Celebrate the height of winter fun with these cool holiday t-shirts. The date of the Winter Solstice in the northern hemisphere will be December 21, 2022; December 22, 2023; December 21, 2024; and December 21, 2025.